add option to reindex on startup

src/main/java/biblivre/search/ElasticsearchInitializingBean.java

@@ -0,0 +1,24 @@
+package biblivre.search;
+
+import biblivre.circulation.user.IndexableUserDAO;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Component;
+
+@Component
+@Profile("elasticsearch")
+public class ElasticsearchInitializingBean implements InitializingBean {
+    @Value("${elasticsearch.startup.action.reindex:false}")
+    private boolean reindexOnStartup;
+
+    @Autowired private IndexableUserDAO indexableUserDAO;
+
+    @Override
+    public void afterPropertiesSet() throws SearchException {
+        if (reindexOnStartup) {
+            indexableUserDAO.reindexAll();
+        }
+    }
+}